Post Test: Energy and Changes in Matter
Select the correct answer.
A student places a 12-gram cube of ice inside a container. After six hours, the student returns to observe the contents of the container. Which sentence
suggests that the container is an open system?
O A. The container contains 12 grams of liquid water and no ice.
O B.
The container contains 12 grams of ice and no liquid water.
OC. The container contains 8 grams of liquid water and no ice.
OD. The container contains 8 grams of ice and 4 grams of liquid water.
OE.
The container contains 8 grams of liquid water and 4 grams of water vapor.
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